What is the airport code for San Francisco, California?

The airport code for San Francisco, California, is SFO. Each major airport has a designated code that typically consists of three letters, which helps in the identification of the airport for flight scheduling, baggage handling, and other logistical needs. The code SFO is derived from the city's name, where 'S' stands for San, 'F' represents Francisco, and 'O' encompasses the final letter of the airport's name.

The other codes listed do not correspond to San Francisco. For instance, SJU refers to Luis Muñoz Marín International Airport in San Juan, Puerto Rico; SLC stands for Salt Lake City International Airport in Utah; and TPA represents Tampa International Airport in Florida. Therefore, SFO is the correct airport code specifically associated with San Francisco.